CN216746504U - High-precision temperature calibration device - Google Patents
High-precision temperature calibration device Download PDFInfo
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- CN216746504U CN216746504U CN202220426957.2U CN202220426957U CN216746504U CN 216746504 U CN216746504 U CN 216746504U CN 202220426957 U CN202220426957 U CN 202220426957U CN 216746504 U CN216746504 U CN 216746504U
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- 230000005457 Black-body radiation Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000005855 radiation Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 208000035473 Communicable disease Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a high-precision temperature calibration device, which is used for calibrating a thermometer and comprises a controller, a constant-temperature heater and a setting unit, wherein the controller is connected with the constant-temperature heater; the setting unit is connected with the input end of the controller, and the control end of the controller is connected with the controlled end of the constant temperature heater; the controller controls the constant temperature heater to maintain the set temperature according to the temperature set by the setting unit; the controller is also provided with a data output end connected with the thermometer to be calibrated so as to transmit temperature data to the thermometer to be calibrated for comparison and calibration. Adopt above-mentioned technical scheme, during the use, set up a temperature numerical value through setting up the unit setting, the controller is controlled the constant temperature heater to transmit the temperature numerical value of this setting to waiting to calibrate thermometer department through the controller, wait to calibrate the temperature that the thermometer detected the constant temperature heater simultaneously, compare it with received temperature numerical value, calibration work. The device realizes quick and accurate calibration and is suitable for detection of various electronic thermometers.
Description
Technical Field
The utility model relates to the technical field of temperature detection, in particular to a high-precision temperature calibration device.
Background
Thermometers are tools that can accurately determine and measure temperature. Various thermometers have been designed and manufactured according to differences in purposes of use. The principle of temperature measurement is as follows: the phenomenon that solid, liquid and gas expand and contract with cold under the influence of temperature is utilized; under the condition of constant volume, the pressure of gas (or steam) is changed due to temperature difference; the resistance changes along with the change of temperature; the influence of thermal radiation, etc. Along with the attention of all social circles on infectious disease protection, subways, schools, banks and various government organizations are provided with electronic temperature detectors capable of automatically measuring temperature. Such detectors require periodic calibration to ensure their accuracy. The conventional temperature calibration device has the defects of large volume, independent installation, high calibration cost and large error, and is not suitable for the calibration work of equipment of the type.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a device capable of quickly and accurately calibrating a thermodetector.
In order to solve the technical problem, the technical scheme of the utility model is a high-precision temperature calibration device which is used for calibrating a thermometer and comprises a controller, a constant-temperature heater and a setting unit; the setting unit is connected with the input end of the controller, and the control end of the controller is connected with the controlled end of the constant temperature heater; the controller controls the constant temperature heater to maintain the set temperature according to the temperature set by the setting unit; the controller is also provided with a data output end connected with the thermometer to be calibrated so as to transmit temperature data to the thermometer to be calibrated for comparison and calibration.
Further, the high-precision temperature calibration device further comprises a display unit, wherein the input end of the display unit is connected with the display end of the controller so as to display the set temperature of the controller.
Further, the high-precision temperature calibration device also comprises a temperature sensor, wherein the temperature sensor faces to the constant-temperature heater to detect the actual temperature of the constant-temperature heater; and the output end of the temperature sensor is connected with the input end of the controller.
Further, the display unit also displays the actual temperature value detected by the temperature sensor.
Further, the display unit comprises at least two groups of nixie tubes.
Further, the constant temperature heater includes a blackbody radiation source.
Further, the setting unit comprises a button module, and the output end of the button module is connected with the input end of the controller.
Further, the controller comprises an MCU module.
Adopt above-mentioned technical scheme, during the use, set up a temperature numerical value through setting up the unit setting, the controller is controlled the constant temperature heater to transmit the temperature numerical value of this setting to waiting to calibrate thermometer department through the controller, wait to calibrate the temperature that the thermometer detected the constant temperature heater simultaneously, compare it with received temperature numerical value, calibration work. The equipment realizes quick and accurate temperature calibration and is suitable for detection work of various electronic thermometers.
Drawings
Fig. 1 is a schematic connection diagram of a circuit module of an embodiment of a high-precision temperature calibration apparatus according to the present invention.
In the figure, 11, a controller; 12. a constant temperature heater; 13. a setting unit; 14. a display unit; 15. a temperature sensor; 2. the thermometer is to be calibrated.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Referring to fig. 1, the technical solution of the present invention provides a high precision temperature calibration device for calibrating a thermometer, which includes a controller 11, a constant temperature heater 12, and a setting unit 13; the setting unit 13 is connected with the input end of the controller 11, and the control end of the controller 11 is connected with the controlled end of the constant temperature heater 12; the controller 11 controls the constant temperature heater 12 to be maintained at the set temperature according to the temperature set by the setting unit 13; the controller 11 is further provided with a data output end connected with the thermometer 2 to be calibrated so as to transmit temperature data to the thermometer 2 to be calibrated for comparison and calibration.
Adopt above-mentioned technical scheme, during the use, set up a temperature numerical value through setting up unit 13, controller 11 controls constant temperature heater 12 to transmit the temperature numerical value that should set up to waiting to calibrate 2 departments of thermometer through controller 11, wait to calibrate 2 temperature that detect constant temperature heater 12 of thermometer simultaneously, compare, the calibration work is carried out with its temperature numerical value that receives. The equipment realizes quick and accurate temperature calibration and is suitable for detection work of various electronic thermometers.
On the basis of the present embodiment, the high-precision temperature calibration device further includes a temperature sensor 15, the temperature sensor 15 faces the constant temperature heater 12 to detect the actual temperature thereof; the output of the temperature sensor 15 is connected to the input of the controller 11. The high-precision temperature calibration device further comprises a display unit 14, wherein an input end of the display unit 14 is connected with a display end of the controller 11 so as to display the set temperature of the controller 11. And the display unit 14 also displays the actual temperature value detected by the temperature sensor 15. The display unit 14 comprises at least two groups of nixie tubes.
It should be noted that, since the constant temperature heater 12 requires a certain time for heating, the built-in temperature sensor 15 is provided for detecting the actual temperature of the constant temperature heater 12, and the display unit 14 is provided with the actual temperature value and the set temperature value, so that the user can grasp the actual temperature information in time.
In this embodiment, the constant temperature heater 12 includes a blackbody radiation source. It should be noted that the blackbody radiation source is mainly used for calibrating radiation thermometers such as a radiation thermometer and a thermal infrared imager. The main technical indexes of the low-temperature blackbody furnace are the emissivity of a blackbody cavity, the uniformity of a target surface, the temperature control stability and the stability of the radiation temperature of the cavity. Besides the special design of the blackbody cavity, the temperature uniformity of the cavity wall surface is one of the keys of the blackbody technology
In this embodiment, the setting unit 13 includes a button module, an output end of the button module is connected to an input end of the controller 11, and the button module is used to set the temperature. Of course, it may also input temperature setting through a touch screen, and other forms, which are not described as limitations in the present embodiment.
It should be noted that the controller 11 includes an MCU module and its peripheral circuit, where the MCU module only needs to use a conventional MCU chip and its peripheral circuit on the market, and its specific chip model is not listed here.
The high-precision temperature calibration device provided by the utility model displays the set temperature and the actual temperature of the constant-temperature heater 12 through the display module, has the advantages of high precision, adjustable temperature, self-provided heating module and small volume, and can be used for near-distance temperature real-time calibration of various temperature measuring devices.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, and the scope of protection is still within the scope of the utility model.
Claims (8)
1. A high accuracy temperature calibration device for use in thermometer calibration, comprising: the device comprises a controller, a constant temperature heater and a setting unit; the setting unit is connected with the input end of the controller, and the control end of the controller is connected with the controlled end of the constant temperature heater; the controller controls the constant temperature heater to maintain the set temperature according to the temperature set by the setting unit; the controller is also provided with a data output end connected with the thermometer to be calibrated so as to transmit temperature data to the thermometer to be calibrated for comparison and calibration.
2. The high accuracy temperature calibration device of claim 1, wherein: the temperature controller further comprises a display unit, wherein the input end of the display unit is connected with the display end of the controller so as to display the set temperature of the controller.
3. The high accuracy temperature calibration device according to claim 2, wherein: the temperature sensor faces the constant temperature heater to detect the actual temperature of the constant temperature heater; and the output end of the temperature sensor is connected with the input end of the controller.
4. The high accuracy temperature calibration device of claim 3, wherein: and the display unit also displays the actual temperature value detected by the temperature sensor.
5. The high accuracy temperature calibration device of claim 4, wherein: the display unit comprises at least two groups of nixie tubes.
6. The high accuracy temperature calibration device of claim 1, wherein: the constant temperature heater comprises a blackbody radiation source.
7. The high accuracy temperature calibration device of claim 1, wherein: the setting unit comprises a button module, and the output end of the button module is connected with the input end of the controller.
8. The high accuracy temperature calibration device of claim 1, wherein: the controller comprises an MCU module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220426957.2U CN216746504U (en) | 2022-03-01 | 2022-03-01 | High-precision temperature calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220426957.2U CN216746504U (en) | 2022-03-01 | 2022-03-01 | High-precision temperature calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216746504U true CN216746504U (en) | 2022-06-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220426957.2U Expired - Fee Related CN216746504U (en) | 2022-03-01 | 2022-03-01 | High-precision temperature calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216746504U (en) |
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2022
- 2022-03-01 CN CN202220426957.2U patent/CN216746504U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220614 |